James8
August 22, 2012, 7:57pm
1
Hi,
Here is what I need to generate:
datacenter VXNY {
the variables are the hostnames and eth0 and eth1. I understand how
Thanks,
When using a template, in Jinja2 syntax, you can iterate through the variable groups in a loop, which is a hash of all machine names in a group, keyed off the name of the group, and then with each group name access something like {{ hostvars[systemName][“ansible_some_fact”] }}.
So getting facts for other machines is pretty easy.
James8
August 22, 2012, 8:43pm
3
Reading the advanced playbooks section on accessing information about
So I have been able to set this easily.
${ansible_eth1.ipv4.address}
But when you say group, am I access my hosts file?
is my hostvars the group in the hosts file?
is this closer?
${CL800.cl801.domain.net.ansible_eth1.ipv4.address)
Feel like I'm not getting it.
James
Here's a simple example that shows the first IP address of every
{% for host in groups['webservers'] %}
From this, the JInja2 reference documentation, and the output of
"ansible hostname -m setup" you should be able to get the facts you
James8
August 23, 2012, 6:15pm
5
What is the easiest way to test this on the command line?
Is this code supposed to be in the .j2 template or in vars/somevariable.yml?
When I understand the answers to those questions, how then do I
CL000 is a group in the hosts file with FQDNs
ansible-playbook deploy.smart.citrusleaf.config.yml -u jmarcus -K -vvvvvv
sheepchase:tasks jmarcus$ ansible --version
Thanks,
What is the easiest way to test this on the command line?
Make a template, test it in a minimal playbook that writes something
Is this code supposed to be in the .j2 template or in vars/somevariable.yml?
It's a template.
When I understand the answers to those questions, how then do I
I kind of answered your template problem for you already.
James8
August 24, 2012, 1:34pm
7
Here is what I have tried:
sheepchase:tasks jmarcus$ cat deploy.smart.citrusleaf.config.yml
tasks:
sheepchase:templates jmarcus$ cat citrusleaf.conf.j2
Here is what I get:
sheepchase:tasks jmarcus$ ansible-playbook
PLAY [CL801] *********************
GATHERING FACTS *********************
TASK: [Create the CitrusLeaf config file] *********************
PLAY RECAP *********************
I hope this will shed some more light on the problem I'm having.
${{{ hostvars[groups[‘CL000’]][‘ansible_all_ipv4_addresses’][0] }}}
This above line is basically nonsense
Print out what groups[‘CL000’] and it should become more clear. The value is a list of hostnames, not a string.
James8
August 24, 2012, 1:45pm
9
[CL000]
When you say print, what is in CL000 is this something I do with Jinja2?
James
James8
August 24, 2012, 2:59pm
10
So I have been working with a coworker on this issue.
I can get the hosts to print with
{% for host in groups['CL000'] %}
but when we get hostvars, they are the hostvars of the servers in the
How do we get the hostvars of the servers in the group CL000?
Thanks
James8
August 24, 2012, 3:31pm
11
So in working through this issue we now have a play that looks like this:
- hosts: CL000
tasks:
But I'm guessing this isn't the way to do things, because it presents
This is the only way we have been able to get "setup" information in
James
There's no reason to use delegate_to here.
Step 1) run a play on all your hosts to gather facts, it doesn't even
Step 2) run a play just against cl801.domain.net
Any time you are using delegate_to without a variable you are doing it
Just do 2 plays.
James8
August 24, 2012, 5:27pm
13
So I have done this, to gather facts, normally I do this in the play.
ansible all -m setup
I may have missed it in the documentation, does this get stored somewhere?
James
James8
August 24, 2012, 5:53pm
14
I dont' need this last question answered
James8
August 24, 2012, 10:14pm
15
Thanks for the help.
I had lots of help from someone at my office too and now I'm getting some where:
sheepchase:tasks jmarcus$ cat deploy.smart.citrusleaf.config.yml
- hosts: CL801
tasks:
sheepchase:templates jmarcus$ cat citrusleaf.conf.j2
[jmarcus@cl801 ~]$ cat citrusleaf.test.conf
dc-node-address-port 143.48.118.70 3000
dc-int-ext-ipmap 10.1.0.170 143.48.118.70
James8
August 25, 2012, 12:10am
16
- hosts: CL000
- hosts: CL300
- hosts: CL801
tasks:
citrusleaf.conf.j2
{% for host in groups['CL000'] %}
datacenter AM {
But I'm getting this error when running the play:
TASK: [Create the CitrusLeaf config file] *********************
Does this have to do with how I setup the playbook?
James
James,
A few questions are ok, but I need you do some investigation of your
Think about why that host might not have that attribute, print out the
You can easily also test what facts a host supplies by:
ansible hostname -m setup
You clearly got the interface information for most of the hosts, but
There are other facts to choose from, like the ipv4 address list, that
--Michael
